Document Type

Book Chapter

Publication Date

4-25-2025

Keywords

Age effects, cohort, cohort-sequential, cross-sequential, time-sequential, sequential studies

Disciplines

Developmental Psychology | Experimental Analysis of Behavior

Abstract

Sequential studies combine aspects of longitudinal and cross-sectional studies in order to overcome some of inherent problems in both designs. Longitudinal studies can provide rich information about phenomena change, but have two major disadvantages: (a) they can require substantial resources, and (b) they can confound effects of age, cohort (i.e., influences due to shared historical experiences), and time-of-data-collection effects (i.e., events that co-occur with the data collection occasions). Cross-sectional studies require fewer resources, but only provide limited information about developmental change.

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